Add Pkl link to community page.

Author: browdues

site/docs/community/index.html

@@ -49,6 +49,7 @@ <h2 id=language>Language Support</h2>
   <tr><td><a href="https://shopify.github.io/liquid/">Liquid</a></td><td><a href="https://github.com/harttle/codemirror-lang-liquid">codemirror-lang-liquid</a></td></tr>
   <tr><td><a href="https://mustache.github.io/">Mustache</a></td><td><a href="https://github.com/GrumpTech/lezer-mustache">@grumptech/lezer-mustache</a></td></tr>
   <tr><td><a href="https://nixos.org/">Nix</a></td><td><a href="https://github.com/replit/codemirror-lang-nix">@replit/codemirror-lang-nix</a></td></tr>
+  <tr><td><a href="https://pkl-lang.org/">Pkl</a></td><td><a href="https://github.com/platform-engineering-labs/codemirror-pkl">codemirror-lang-pkl</a></td></tr>
   <tr><td><a href="https://www.r-project.org/">R</a></td><td><a href="https://github.com/TravisYeah/lang-r">codemirror-lang-r</a></td></tr>
   <tr><td><a href="https://soliditylang.org/">Solidity</a></td><td><a href="https://www.npmjs.com/package/@replit/codemirror-lang-solidity">@replit/codemirror-lang-solidarity</a></td></tr>
   <tr><td><a href="https://www.w3.org/TR/sparql11-query/">Sparql</a></td><td><a href="https://www.npmjs.com/package/codemirror-lang-sparql">codemirror-lang-sparql</a></td></tr>